DOA

DOA is an abbreviation for "Dead Ops Arcade". It is a gamemode in the Call of Duty franchise in which you have to survive hordes of zombies and travel through different arenas in order to take out different members of the Silverback clan. The gamemode was first introduced in Call of Duty Black Ops, in which you fight the Cosmic Silverback. Dead Ops Arcade 2 was featured in Call of Duty Black Ops 3, where you quest to take on the Cyber Silverback. The third installment of Dead Ops Arcade, was in Call of Duty Cold War, where you take on the Mamaback.

I played a game of DOA 3 the other day and I finally killed the Mamaback!